6312515647 has 16 divisors (see below), whose sum is σ = 6716250112. Its totient is φ = 5922473760.

The previous prime is 6312515639. The next prime is 6312515659. The reversal of 6312515647 is 7465152136.

It is a cyclic number.

It is not a de Polignac number, because 6312515647 - 2³ = 6312515639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6312515687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314878 + ... + 334324.

It is an arithmetic number, because the mean of its divisors is an integer number (419765632).

Almost surely, 2^6312515647 is an apocalyptic number.

6312515647 is a deficient number, since it is larger than the sum of its proper divisors (403734465).

6312515647 is a wasteful number, since it uses less digits than its factorization.

6312515647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19798.

The product of its digits is 151200, while the sum is 40.

The square root of 6312515647 is about 79451.3413794884. The cubic root of 6312515647 is about 1848.1369749384.

The spelling of 6312515647 in words is "six billion, three hundred twelve million, five hundred fifteen thousand, six hundred forty-seven".